These functions create a TDRcalibrate object
which is necessary to obtain dive summary statistics.

Usage

1
2
3

Arguments

x

An object of class TDR for
calibrateDepth or an object of class
TDRcalibrate for calibrateSpeed.

tau

numeric scalar: quantile on which to regress speed on rate
of depth change; passed to rq.

contour.level

numeric scalar: the mesh obtained from the
bivariate kernel density estimation corresponding to this contour
will be used for the quantile regression to define the calibration
line.

z

numeric scalar: only changes in depth larger than this value
will be used for calibration.

bad

numeric vector of length 2 indicating that only rates of
depth change and speed greater than the given value should be used
for calibration, respectively.

coefs

numeric: known speed calibration coefficients from
quantile regression as a vector of length 2 (intercept, slope). If
provided, these coefficients are used for calibrating speed,
ignoring all other arguments, except x.

main, ...

Arguments passed to rqPlot.

plot

logical: whether to plot the results.

postscript

logical: whether to produce postscript file output.

Details

This calibrates speed readings following the procedure outlined
in Blackwell et al. (1999).